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Leeds North West - 2025 Sewage

Polluted by sewage 4,253 hours in 2025 , monitoring offline 20,570 hours , potential overflows 687 hours

© OpenStreetMap contributors
Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024

Which Year?

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✔ means we have live data (𝑥 if not)

View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in Leeds North West for 2025. It is an estimate, based on very poor quality live data from the Water Companies. This may not align with the 'official' reported sewage values from the water companies, which is reported in April following then end of the year - so 2025 numbers are reported in April 2026.

What's a potential overflow? If the CSO goes 'Offline' while its Overflowing, we don't know if it stopped overflowing until we get a 'Stop' event.

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Daily Data

Jan - 865 hours , 187 potential
Feb - 1 hours , 2,071 offline
Mar - 0 hours , 2,764 offline
Apr - 0 hours , 2,160 offline
May - 23 hours , 2,232 offline
Jun - 158 hours , 33 potential
Jul - 225 hours , 55 potential
Aug - 1 hours , 1,488 offline
Sept - 369 hours , 26 potential
Oct - 335 hours , 1,488 offline
Nov - 828 hours , 279 potential
Dec - 1,444 hours , 104 potential
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Yorkshire Water POOL/STW/3XDWF OVERFLOW River Wharfe 73 927h 27m -
Yorkshire Water WOODLANDS CLOSE/CSO River Aire 54 742h 21m 643 h
Yorkshire Water RAWDON/CSO River Aire 54 653h 14m -
Yorkshire Water BURLEY IN WHARFEDALE/STW River Wharfe 54 649h 23m -
Yorkshire Water OTLEY/STW River Wharfe 40 283h 19m -
Yorkshire Water CROOK FARM/CSO Culverted River Wharfe 37 119h 41m -
Yorkshire Water ADEL CHURCH LANE/CSO Adel Beck 28 115h 55m -
Yorkshire Water BILLAMS HILL/CSO River Wharfe 42 102h 49m -
Yorkshire Water CLAREMONT 271/CSO River Aire 13 100h 38m 244 h
Yorkshire Water RAWDON/CSO River Aire 23 97h 17m -
Yorkshire Water WOODLANDS DRIVE/CSO River Aire 25 72h 50m -
Yorkshire Water POOL/STW/6XDWF OVERFLOW River Wharfe 9 72h 17m -
Yorkshire Water BYWATER FARM/CSO Adel Beck 5 51h 33m 7,312 h
Yorkshire Water LOW LANE/CSO Oil Mill Beck 31 45h 28m -
Yorkshire Water ARTHINGTON LANE/CSO River Wharfe 19 35h 29m -
Yorkshire Water ILKLEY ROAD/CSO River Wharfe 23 33h -
Yorkshire Water WARREN LANE OTLEY/CSO Wharfe 12 28h 15m 2 h
Yorkshire Water GHYLL ROYD/CSO Nunroyd Beck 17 25h 43m -
Yorkshire Water OTLEY BRIDGE STREET/CSO River Wharfe 13 23h 7m -
Yorkshire Water KIRK LANE/NO 1 CSO Nun Royd Beck 23 21h 43m -
Yorkshire Water BLACKMOOR ROAD/NO 2 CSO Adel Beck 17 15h 47m -
Yorkshire Water WEST BUSK LANE/NO 2 CSO River Wharfe Via Public Sewer 12 15h 42m -
Yorkshire Water NETHERFIELD ROAD/CSO Mire Beck Via Sws 7 13h 56m -
Yorkshire Water OTLEY ROAD ADEL/CSO Culverted Adel Beck 4 2h 11m -
Yorkshire Water FRASER AVENUE/NO 2 CSO River Aire 3 1h 23m -
Yorkshire Water NEWLAY LANE 266/CSO River Aire 5 1h 10m -
Yorkshire Water NEWLAITHES ROAD/NO 1 CSO Unknown 4 0h 53m -
Yorkshire Water STAIRFOOT LANE/CSO Adel Beck 1 0h 36m 4,454 h
Yorkshire Water VICTORIA GARDENS/CSO River Aire 2 0h 24m -
Yorkshire Water UNDERWOOD DRIVE/CSO River Aire 0 0h 16 h
Yorkshire Water NEWLAY WOOD CRESCENT/CSO Kirkstall Forge Goit Via Sws 0 0h -
Yorkshire Water KIRK LANE/NO 2 CSO Nun Royd Beck 0 0h 8,584 h
Yorkshire Water NEWLAY LANE/CSO River Aire 0 0h -

Data Sources & Accuracy

EDM (Event Duration Monitoring) data and Consented Discharges to Controlled Waters with Conditions from Environment Agency & Data Map Wales, and Scottish Water

Experimental derived data from Thames Water API, Some data may be missing or inaccurate. Live sewage data from Stream Water API

Annual figures up to and including 2025 come from official water company returns. The 2026 figure is our own estimate, derived continuously from the companies' live data feeds.

Uses Environment Agency rainfall data from the real-time data API (Beta) - Rainfall data is delayed by up to two days.

This website is intended to provide an accurate representation of the Environment Agency data. The data is hard to use, and thus some errors may have been made. If you find something that is incorrect, please raise an issue at the GitHub issues page and we'll endeavour to fix it quickly.

This project is not associated, approved or endorsed by any of the companies whose logos you see here.